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Waste

Waste

Waste is unwanted material. It may include components of a product that are obsolete by themselves, unusable byproducts of processes, or once-usable items that have expired. Waste also refers to substances that people must discard due to their hazardous properties.

The practice of waste management involves properly collecting, transporting, processing and/or disposing of waste. Different strategies exist for different categories of waste. Environmentally harmful strategies such as building landfills and incinerating waste are now generally discouraged in favor of more sustainable methods, such as recycling and composting. (Photo: Shutterstock)

When it comes to staging 'performance architecture' on NYC waterways, the second time's truly a charm. Harvest Dome 2.0, a giant sphere made from discarded umbrellas, is now bobbing merrily along at Inwood Hill Park Inlet.

We all know that poo doesn't join Mr. Hankey in BM heaven once it's flushed. AsapScience offers a fascinating look at the afterlife of waste as it enters the sewage treatment process in 'The Poop Cycle.'